oooo, now that got the gears in my head turnin...If you're gonna be doing it that small, why not build it in a PC shell. like the ones they have on ebay for 600.00. im sure you could get an older PC for free if u looked hard enough. gut it and built your box. just a suggestion
After it breaks the surface of the dirt give it a week or so.Some folks actually go directly into 12/12 as soon as it breaks but...yes most likely is there a way to build a small carbon filter to harness the smell or any way i could keep the smell in the container? and when you say grow it for a week you mean germinate the seed wait til it sprouts and that be the begining of the week?